Also what happens if a crisis occurs in which we need a carrier? Are we going to ask the opponent to wait for a few years?
What foe do you plan to fight, aside from those dastardly, fiendish Argies, this planets leading menace to civilization as we know it?
Will the UK defend Saudi A. from Eye-ran? Will the RN stand side by side -- pardon the inappropriate metaphor -- with the US Nav. in the Taiwan Straits or the Yellow Sea?
Or is the RN going to carry out a future United Nations mandate to break an Israeli air and sea blockade of the Gaza strip?
Please tell us what specific foe you intend to fight, aside from villainous Argentines or hi-tek Somali pirates.